The commission may appoint employees and agents and fix their compensation within moneys available therefor. Such compensation and the other necessary expenses of the commission shall be paid from moneys received by the commission from appropriations from the state including from the Lake George park trust fund pursuant to section ninety-seven-h of the state finance law or one or more municipalities in the counties of Essex, Warren or Washington, or from gifts or contributions, which the commission is hereby authorized to accept. Moneys appropriated for use of the commission by the state shall be paid out of the state treasury on the audit and warrant of the Comptroller on vouchers certified or approved by the chairman of the commission or by an officer or employee of the commission designated in writing by the chairman.